# Service bulletin LI27.60\-P\-076554

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11013297
- Published by NHTSA: 2025\-01\-31
- Manufacturer's number: LI27.60\-P\-076554
- Manufacturer's date: 2025\-01\-31
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's summary

Complaint • Hard 1\-2 shift • Jerky shifting • Jolting when moving off Cause Insufficient data points for the adaptation limits algorithm Remedy Problem will be rectified with a new SW release Until the SW release is available, \(No current ETA\) please carry out the following: • Check the transmission oil level and correct if necessary • Rinse the valves a minimum of 3 times via XENTRY • Perform a stationary standstill adaptation, then collect EEPROM data If the problem persists, please perform driving adaptations of 4\-5 at least ten to fifteen times: : • Level track \(no incline/decline\) • Slippery drive program • Display the torque in the instrument cluster: The torque must be between 100 and 250 Nm, preferably closer to the maximum torque • Constant engine torque • Engine speed under 2500 rpm • Do not shift via paddle • Collect a new EEPROM data after all adaptions are complete If the problem persists, please create a TIPS case. With both EEPROM files

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11013297-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11013297-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline

## Vehicles listed

- 2023 to 2024 MERCEDES\-BENZ AMG C43
- 2023 to 2024 MERCEDES\-BENZ AMG SL43
- 2022 to 2024 MERCEDES\-BENZ C 300

JSON: [/v1/bulletins/11013297](/v1/bulletins/11013297)

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